Attachment Exhibit B and Ba

This document pretains to SES-LIC-20110623-00731 for License on a Satellite Earth Station filing.

IBFS_SESLIC2011062300731_898680

RF RADIATION HAZARD ANALYSN Exhibit #B AntennaDia.@):1.5 Meters4.922Feet AntennaSurfacefuea (SAFl.767sqmeters SubreflectorDia@S):N/A (primefocusoffset) SurfaceArca(AS)=N/A(primefocusoffset) Subreflector KU Wavelength at 14.250GHz(LAMBDA)=.9211 meters Powerat outputof HPA flange25./t4l dB PathLossto OMT (ILFI.0 dB Powerat OMT Flange(PF278.015watts AntennaGainat 14.250GHz(G)=45.9dBi AntennaGaingivenin PowerRatio(GESF.3890E+05 AntennaApertureEfficiency(NF.7902 Region Rrdiation Levol HazardAsscssment FarField(RF)63.981m 209.922ft 21.026mWom sq PotentialHazard NearFieldflI/F) 26.659m 87.467ft 49.727mWcm sq PotentialHazad TransitionRegion(RT) equalto or lessthan PotentialHazard Ru<Rt<Rf 49.727mWcm sq BetweenMainReflector and N/A Subrcflector(WS) MainReflectorRegion(WM) 31.465mWcm sq PotentialHazard PowerDensrtyBetweenReflector 15.732mWcm sq PotentialHazard andGround Conclusion:Basedon theabpveanalysis,harmfulareasof Radiationdo existin areasaround theantenna andin thepathof theantenna towardthesatellitethatit is pointedat. TheArea oocupied by thegeneralpublicwill not exceedtheAI.ISIlimit of I mW cm sq.because the antenna is mountedontop of thetrrrck,whichis at least8 feetabovetheground,andsafety increases with look anglesusedby the Satellitesin theUnitedStateson Dom.Sat.arch. The SNGwill bemarkedwith thestandard radiationhazardwamings,andontheantenna itself, The warningsignswill warnpersonnel to avoidtheareaaroundandin frontof tlrereflectorwhenthe bansmittetis openting. To ensurecompliance with safetylimits,theearthstationhansuritter will beturnedoffand markedto remainoffwhenevermaintenance andrepairpersonnel are rcquiredto work in theareasof potentialhazardasdefinedin theabovestrrdy.Additionallythe earthstationpersonnel will beuainedto insurethattheantennapath is clearat all timeswhilethe tansmitteris in operation Note:SeeExhibit#Bafor howtheabovecalculations weremade.

ExhibitBa Analysisof Non-lonizing Radiation (D)=............ AntennaDiameter, :4.922 D :=1.5 meters D.3.281 Feet D.D AntennaSurfaceArea, (Sa)= Sa =r''- -' Sa=1.767 sq meters 4 Subreflector Diameter,(Ds;=.......... Ds :=0 cm Ds"3937:0 Inch's Area of Subreflector, (As1=......... As '=n.ot'ot As =0 sq cm CenterFrequency, (C0=........... CF ;=14.250GHz Wavelenghtat (Cf),(Lambda)=.. .. Lambda:..0211 meters C-Band=.049 Ku-Band=.021 1 TransmitPoweratHPAoTVPCFlange,(Pt;=.. Pl :=350 watts P2 ;=log(Pl)'10P2=25.441d8 PathLossfrom HPA or VPC to OMT,(Loss)=.. Loss:=1.0 dB P3 :=P2- Loss P3 =24.441 OMT Pwr in dB Powerat OMT,(P)=............ p3 P:= 10ffi p =278.015 OMT pwr in watts AntennaGainat (C0, (Gain)= Gain:=45.9 dBi Gain AntennaGainConvertedto PowerRatio,(Ges). Ges:=l0T Ges=3.g9.10a Ratio AntennaApertureEfficiency, (n)=..................... n,.=.7902 FarField(Rf)= n., = :20e.e22 Feet 10jS?;?) *t=63.e81 meters Rf.3.28r (Wf)= wf = - --9jll-..r FarFieldPwrDensity Wf=21.026 mwsqcm 4'r.(Rf'Rf) NearField(Rn)= *'=#a; Rn =26.659 meters Rn.3.2Bl=87.467 Feet ll-n-|'."..f Near FieldPwr Density(Wn;= wn - Wn = 49.727mw sq cm n'(D'D) TransitionRegion(Rt)= Rt ;=Wn.l Rt = 49.727 mw sq cm (Equalto or lessthen) Pwr Densityat Sub Reflector(Ws1= N/A I: N/A mw sq cm MainReflectorRegionPwr Density(Wm;= Wm ,=?rl..t ** =31.465mw sq cm Pwr Densitybetweenmainreflectorand ground(Wg)= wg ,- Wg: t5.732 mw sq cm $..r


Document Created: 2019-04-11 22:38:55
Document Modified: 2019-04-11 22:38:55
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